Finding the Fourth Proportional to 142,144,717.03, 213,075,828.37 and 98,923,118.72

Step by Step Solution

1. Step 1: Write the proportion equation
   142,144,717.03 : 213,075,828.37 = 98,923,118.72 : x
2. Step 2: Convert to fraction form
   142,144,717.03/213,075,828.37 = 98,923,118.72/x
3. Step 3: Cross multiply
   142,144,717.03x = 213,075,828.37 × 98,923,118.72
4. Step 4: Simplify right side
   142,144,717.03x = 21,078,125,466,207,856
5. Step 5: Solve for x
   x = 21,078,125,466,207,856/142,144,717.03
6. Step 6: Final answer
   x = 148,286,379.59